Designed for precision measurement, the ACFC-I low-power, multi-path gas ultrasonic flow meter is designed for natural gas in medium and low-pressure pipeline systems. It is suitable for urban gas distribution and various industrial/commercial users; additionally, it accommodates process gases like coalbed methane, nitrogen, and air.
The product delivers high accuracy, a wide rangeability, a low flow startup threshold, strong noise immunity, and low power consumption. Featuring an intrinsically safe explosion-proof design, it is compact, lightweight, safe, and reliable. Easy to install and maintain, it effectively reduces user operation and maintenance costs. Furthermore, it enhances the operational management efficiency and lean management capabilities of gas companies, helping to minimize supply and sales discrepancies.
| Product Features | |
| 1 | Cross-bore acoustic path layout |
| 2 | Class 1.0 Accuracy |
| 3 | Line Sizes: DN25 to DN200 |
| 4 | Pressure ratings PN16~PN40 |
| 5 | No moving parts, low maintenance |
| 6 | Built-in pressure and temperature sensors |
| 7 | Wireless data transmission |
| 8 | Supports battery power |
| 9 | Multiple data logs |
| 10 | Intelligent diagnosis, accuracy warnings, fault alarms |
| 11 | Built-in conditioner , low straight-pipe requirement |
| 12 | Intrinsic safety explosion-proof |
1. Low power consumption, wireless communication
Featuring a low-power design, the built-in battery can provide power for maximum 5 years, and it integrates a wireless communication module, allowing data to be accessed through a cloud management system.
2. PTZ/EVC function
Built-in temperature sensor and a high-precision, temperature-compensated digital pressure sensor, with the integrated AGA Report No.8 algorithm for compressibility factor calculation, enabling the conversion of operating condition flow rate to standard condition flow rate. The system can be paired with a gas shut-off valve to achieve safety control and prepaid management. (PTZ: Pressure-Temperature-Zero compensation. EVC: Electronic Volume/Flow Control)
3. Embedded Conditioner
Featuring a built-in flow conditioner that eliminates flow distortions (vortices/asymmetric flow) to ensure accuracy, reducing an upstream straight pipe run to 5D.
4. Data Storage
It has a comprehensive logging system, covering measurement data, parameter modification, and operational alarm; it also has a redundant storage mode and multi-level password protection, providing maximum data security.
5. Supporting ACFC Explorer PC software
The ACFC Explorer PC software supports graphical configuration and online diagnostics of the flowmeter, allows encrypted export of service packages, and enables offline diagnostics.
Accuracy error range of class 1.0: qmin≤q＜qt:＜±2% qt≤q≤ qmax:＜±1% repetitiveness： qmin≤q＜qt :＜0.4% qt≤q≤ qmax:＜0.2% | Parameter/Size | DN25 | DN32 | DN40 | DN50 | DN80 | DN100 | DN150 | DN200 |
qmax [m³/h] | 40 | 65 | 100 | 160 | 400 | 640 | 1440 | 2560 | |
qt [m³/h] | 4 | 6.5 | 10 | 16 | 40 | 64 | 144 | 256 | |
qmin [m³/h] | 0.7 | 1 | 1.5 | 1.6 | 3 | 4 | 9 | 16 | |
Starting Flow [m³/h] | 0.3 | 0.3 | 0.4 | 0.5 | 1 | 1.2 | 3 | 4 | |
Turndown Ratio | 57 | 65 | 66 | 100 | 133 | 160 | 160 | 160 | |
Number of Paths | 1-Path | 2-Path | 3-Path | 4-Path | |||||
Line Size | Flange I.D. d (mm) | Flange Rating PN16 | Flange Rating PN25 | Flange Rating PN40 | weight (kg) | ||||||
A (mm) | L (mm) | H (mm) | A (mm) | L (mm) | H (mm) | A (mm) | L (mm) | H (mm) | |||
DN25 | 25 | 132 | 200 | 293 | 132 | 200 | 293 | 132 | 200 | 293 | 13 |
DN32 | 32 | 143 | 200 | 313 | 143 | 200 | 313 | 143 | 200 | 313 | 15 |
DN40 | 40 | 153 | 200 | 313 | 153 | 200 | 313 | 153 | 200 | 313 | 18 |
DN50 | 50 | 172 | 200 | 366 | 172 | 200 | 366 | 172 | 200 | 366 | 20 |
DN80 | 80 | 203 | 240 | 413 | 203 | 240 | 413 | 203 | 240 | 413 | 25.4 |
DN100 | 100 | 218 | 300 | 438 | 218 | 300 | 445 | 218 | 300 | 445 | 36 |
DN150 | 150 | 294 | 450 | 505 | 294 | 450 | 512 | 294 | 450 | 512 | 103 |
DN200 | 200 | 339 | 600 | 547.5 | 339 | 600 | 557.5 | 339 | 600 | 565 | 128 |
Item | Technical Specifications | |
Line Size | DN25 to DN200 | |
Measuring Medium | Non-corrosive gases such as natural gas, air, nitrogen, etc. | |
Nominal Pressure | PN16 / PN25 / PN40 | |
Medium temperature | (-30~+70)℃ | |
Medium pressure | (0~4)MPa | |
Ambiant Temperature | (-40~+70)℃ | |
Storage Temperature | (-40~+70)℃ | |
Accuracy | 1.0 | |
Overload | 120%Qmax | |
Body Material | Carbon Steel / 304 / 316 | |
Explosion-proof Rating | Ex ib IIB T4 Gb | |
Protection Level | IP65 | |
Power Supply | Built in battery, with a lifespan of 5 years (at an ambient temperature of 20 ℃) Battery voltage: 7.2V | |
external power supply：(11-17)VDC/0.5W( Explosion proof occasions) (11-33)VDC/0.5W( Non explosion proof occasions ) | ||
Power Interface Intrinsically Safe Parameters | Ui=17V Ii=0.5A Pi=3W Ci=1.26uF Li=0.01mH | |
Installation Method | Horizontal or Vertical | |
Local Display | Totalized Flow | 00000000.00 Nm³ or 000000000.0 Nm³ (10 digits) |
Instantaneous Flow | Standard condition instantaneous / operating condition instantaneous, displays 6 digits with 1 or 2 decimal places | |
Temperature, Pressure | Temperature 000.0℃; Pressure (Absolute) 000.00 KPa/MPa | |
Backlight | Backlit keys light up, and automatically turn off after 1 minute of inactivity | |
Other | NB signal quality, battery level, power supply mode, alarm/fault codes | |
Temperature Sensor | ||
Temperature Sensor type | Platinum Resistance Sensor Pt1000 Grade A Accuracy | |
Measurement Range | (-40~80)℃ | |
Measurement Error | ±0.3℃ | |
Pressure Sensor | ||
Measurement Range | (0~0.5)MPa / (0~1.0)MPa / (0~1.6)MPa / (0~2.5)MPa / (0~4.0)MPa | |
Measurement Type | Absolute pressure | |
Measurement Accuracy | ±0.1%FS | |
RS485 Communication | ||
Communication Protocol | Modbus RTU | |
Communication Speed | 9600bps / 19200bps / 38400bps / 115200bps | |
Communication Address | 1-247 | |
High-frequency Pulse Output (for metrological verification) | ||
Output Format | Internal pull up | |
Maximum Allowable Voltage | 33VDC | |
Power Supply Voltage | External power supply, (5~30)VDC | |
Maximum Output Frequency | 3.36kHz | |
Low-level Voltage | ＜0.7V | |
High-level Voltage | ＞0.7VDD，(RL＞1.5kΩ) | |
Low-frequency Pulse Output (billing system) | ||
Output Format | Internal pull up | |
Maximum Allowable Voltage | 33VDC | |
Power Supply Voltage | External power supply, (5~30)VDC | |
Maximum Output Frequency | 100Hz | |
Low-level Voltage | ＜0.7V | |
High-level Voltage | ＞0.7VDD，(RL＞1.5kΩ) | |
Simulated Output Interface | ||
Constant Current Mode | (4-20)mA | |
Intrinsic Error | ±0.1%FS | |
Wireless Communication | ||
Communication Type | NB-IoT | |
Wireless Network | Telecom / China Mobile / China Unicom | |
Data Reporting Frequency | External power supply ≥5 min, battery power ≥1 h, configurable | |
Product Model | Remarks | ||||||
ACFC | |||||||
-I | Measuring Medium | ||||||
G | Natural Gas | ||||||
A | Air / Nitrogen | ||||||
X | Other gases | ||||||
Accuracy | |||||||
B | 1.0 | ||||||
Nominal diameter | |||||||
DN25 | DN25 | Single | |||||
DN32 | DN32 | Single | |||||
DN40 | DN40 | Single | |||||
DN50 | DN50 | Dual | |||||
DN80 | DN80 | 3-Path | |||||
DN100 | DN100 | 4-Path | |||||
DN150 | DN150 | 4-Path | |||||
DN200 | DN200 | 4-Path | |||||
DNX | Custom | ||||||
Pressure Rating | |||||||
PN16 | 1.6MPa | ||||||
PN25 | 2.5MPa | ||||||
PN40 | 4.0MPa | ||||||
X | Special Requirement Contact ANCN | ||||||
ACFC | -I | G | B | DN50 | PN16 | ||
